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1、Level3Unit1Part2Listening:TimeZonesOurplanet,theEarth,isthethirdplanetfromtheSun.Itisabeautiful,rotatingsphere.ThesidefacingtheSun动名词短语作后置定语isindaylight.ThesidefacingawayfromtheSunisindarkness.Forexample,whenit'sdaytimeintheUS.it'snighttimeinChina.Infact,there'sa12-hour名词-名词，成为形容词timedifferenceb
2、etweenBostonandShanghai.Whenit'smidnightinShanghai,it'snooninBoston.(WhichsideoftheEarthisindaylight?)(Whatistheshapeofourplanet?)TheEarthrotatesfromwesttoeast.Toknowwhichdirectioniseastorwest,watchthesun.TheSuntravelsthroughtheskyfromeasttowest.TheSuncomesupintheeastandgoesdowninthewest.Again,t
3、hisisbecausetheEarthrotates.Ittakes24hoursfortheEarthtomakeacompleterotation.Andthatisthelengthofoneday.(Whatrotatesfromwesttoeast?)(HowlongdoesittakefortheEarthtomakearotation?)BecauseoftheEarth'srotation,theEarthisdividedintotimezones.Somecountries,suchastheUS,haveseveraltimezones.Whenit's10am
4、inNewYork,it's7aminSanFrancisco.EuropeandtheUS,areseparatedbyseveraltimezones.Whenit's5pminParis,it's11aminBoston.Sothere'sa6-hourtimedifferencebetweenParisandBoston.Onelargecountry,China,hasjustonetimezoneforthewholecountry.Asaresult,atthesametime,somepartsofthecountrycanbedarkandtheotherpartsc
5、anbelight.(WhyistheEarthdividedintotimezones?)(Whichlargecountryhasonlyonetimezone?)AsyoutravelaroundtheEarth,thetimechanges.Thetimeofdaydependsonyourlocationontheplanet.Whenyoutraveleastorwest,youmaycrossseveraltimezones.Forexample,ifyoutravelfromBeijingtoLosAngeles,yourcross8timezones.Thatmean
6、swhenit'snoononSundayinChina,it's8pmonSaturdayinLosAngeles.Fortravelers,thismeansitcanbeverydifficulttosleepafteralongfright.Theclockmaysaysay说明指示Mywatchsays5O'clock.8pm,butforyourbodyit'snoon.Thisiscalledjetlag.(WhatchangesasyoutravelaroundtheEarth?)(Whathappenedwhenyoutraveleastorwest?)(Crossi
7、ngseveraltimezonescausesjetlag.)Listening:Kim'sMovieStarDreamKimisapopularKoreanactress.Sheis28yearsold,slimandbeautiful.Shehasalargefunclub,andhermoviesareverypopular.Everywhereshegoes,herfunswantherautograph.ButKimwantsmor
